Question

evaluate the expression 5x^3-2x^2 when x= -1 2/3

Answer 1

Step-by-step explanation:

We can evaluate the given algebraic expression by simplifying

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the expression ,then substituting the values of #x, y and z.#

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#x^3-2y^2-3x^3+z^4" "#Arranging similar monomials

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#=x^3-3x^3-2y^2+z^4#

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#=-2x^3-2y^2+z^4#

#" "#

#=-2(3)^3-2(5)^2+(-3)^4#

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#=-2xx27-2xx25+81#

#" "#

#=-54-50+81#

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#=-104+81#

#" "#

#=-23#